Designed with Mattel principal designer, Bill Greening, the designers put together a fabulous one-of-a-kind Pink Diamond Barbie that is currently up for auction at charitybuzz.com.

The glamourous doll was spotted backstage at the duo's New York Fashion Week show wearing a pretty pink gem-adorned mini corset dress, full-length faux fur coat and blinged-out pumps that were hand-crafted by the fashioners themselves.

Now that you have the 4-1-1 on how dazzling this Barbie is, you'll be more intrigued by knowing that when it's bought, the proceeds will benefit the MAC Aids Fund organization!!!

So what are you waiting for?!?

Go bid on the fancy designer-dressed dolly that comes with a display case and a certificate of authenticity right now!!!!!

Check out more pics of the doll and Paris Hilton, Adam Lambert and David Blond playing with the deluxe Pink Diamond Barbie (below)!